Reference for Bava Batra 56:10

אכלה תלתא פירי בתלתא ירחי כגון אספסתא ליהוי חזקה מאן הולכי אושא ר' ישמעאל לר' ישמעאל הכי נמי

Now [suppose we accept the ruling] according to R. Meir, who said: 'If there was an interval between the gorings the owner is liable, all the more so then if they followed closely on one another.'<span class="x" onmousemove="('comment',' R. Meir uses this a fortiori argument in support of his view against that of R. Judah who defines a Mu'ad, 'an ox who gored on three successive days but not who gored three times in one day,' v, B.K. 24a. ');">⁹</span>

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